Evaporating apparatus



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, EVAPORATING APPARATUS.

No. 528,859. Patented Nov. 6, 1894.

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T. CRANEY. EVAPORATING APPARATUS.

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UNITED STATES PATENT OFFICE.

THOMAS ORANEY, BAY CITY, MICHIGAN.

EVAPO RATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 528,859, dated November 6, 1894.

Application filed April 7,1894. Serial N0. 506,709. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS ORANEY, a citizen of the United States, residing at Bay City, in the county of Bay and State of Michigan, have invented certain new and useful Improvements in Evaporating Apparatus, of which the following is a specification, referencebeing had therein to the accompanying drawings.

The invention consists in the peculiar construction of a furnace evaporating pan and its combination with steam evaporating pans, whereby the steam generated in the first pan may be used for double or triple expansion in the steam pans.

The invention further consists in the combination with two furnace pans of an intermediate series of steam pans adapted tobe connected therewith, so that either furnace pan may be used independently or for double expansion, or either may be used for triple expansion, and further, in the peculiar construction, arrangement, and combination of the various parts.

Figure 1 is a front elevation of my improved apparatus. Fig. 2 is a horizontal section on line 00 00,. Fig. 1. Fig. 3 is a vertical,

central, longitudinal section through one of i the furnace pans. Fig. 4 is a similar section through one of the steam pans.

The furnace evaporating pans are alike. Therefore a description of one will suffice for both.

A is a suitable foundation wall. B is a furnace thereon, preferably having feed doors on each side.

D is a casing extending above the furnace and within which is formed the combustion chamber E.

F is a casing arranged concentrically to the casing D and extending above the same, forming within the evaporating chamber G.

H is a goose neck on top of the evaporating chamber for carrying off the vapors. l is a condenser in the downward portion of said goose neck.

. J is the discharge pipe below the condenser.

Outside of the casing F is an annular casing Kforming between it and the casing F a smoke chamber L, which connects at the top into suitable exit dues or chimneys M.-

N is a series of tubes connecting the chambers E and L and passing through the annular heating chamber N surrounding the combustion chamber.

O is a settling chamber below the furnace and connecting with the lower end of the chamber N.

O is the settling leg in the lower end into which a suitable elevator P may be connected for carrying off the salt crystals.

The steam evaporating pans comprise a steam chamber Q connected with an outer steam ring Q, and evaporating chamber Q, a goose-neck Q a condenser E in the discharge leg thereof, and a discharge pipe R from the condenser.

so that this pan may also be used independently, or in connection with the steam pan for double or triple evaporation, or I may use both of the furnace pans together, or in connection with the steam pans to effect a double evaporation of both. The connecting pipes are shown in Fig. 2 and comprise what I call the trunk pipe 5 having valved branches 6, 7, 8 and 9, into which thedischarge from the two furnace pans and the two steam pans connect, each of these discharge pipes being provided below the trunk pipe with the controlling valve 10.

11, 12 and 13 are valves in the trunk pipe.

14,15, 16 and 17 are valved pipes connecting the trunk pipe with the steam ring of the steam pans, two for each pan.

The parts being thus constructed their operation is as follows: If I desire to use both of the vacuum pans for double expansion, fire being started in both of the furnaces, the steam being generated therein and passing out of the goose necks to both pans and into the trunk pipe through the branches 14 and 17 respectively and into the steam ring and steam chamber of the two steam pans, effecting evaporation therein, the vapor being discharged through the goose necks ot the steam pans, the condensers ofboth pans being in operation. If it is desired to use but one furnace for triple expansion, say the furnace pan 1, the vapor will pass from that pan into the trunk pipe, through the branch 17, into the steam ring of the pan 2, the vapor from which will pass through the goose neck into the branch 8 and thence through the pipe 15 into the steam ring and steam chamber of pan 8, the vapor from which will pass out through its goose neck, the condenser in the discharge pipe being in operation. It is evident that the same arrangement may be accomplished, starting with the furnace pan 4.

What I claim as my invention is- 1. In an evaporating apparatus, the combination with the furnace, of an evaporating pan thereon, a settling leg and a valved vapor discharge pipe, of a plurality of evaporating pans having steam heating chambers, settling legs and valved vapor discharge pipes, a trunk pipe into which the discharge pipes lead,the

valved branch pipes 14, 15 leading from the trunk pipe into the heating chamber of one of the pans, the valved branch pipe 16 leading into the heating chamber of the other pan, and the valve 12 in the trunk pipe between the pipes 15 and 16, substantially as described.

2. In an evaporating apparatus, the combination with a plurality of furnaces, of evaporating pans above the same, each provided with settling legs, and valved discharge pipes, a plurality of intermediate evaporating pans each having steam heating chambers, settling legs, valved discharge pipes and condensers, a trunk pipe connecting the discharge pipes of all the pans and a plurality of valved pipes leading from the trunk pipe into each intermediate pan, substantially as described.

In testimony whereof I affix mysignature in presence of two witnesses.

THOMAS CRANEY.

Witnesses:

M. B. ODoGHEn'rY, O. F. BARTHEL. 

